Alloy Steel Welded Pipe

Short Description:

Type: Alloy Pipe, Alloy Tube, Alloy Steel Pipe, Alloy Steel Tube, Alloy Welded Steel Pipe
Spec.: OD: Norminal~60”. WT: up through 4”. Length: Single Random, Double Random, Cut length max to 23m.
Standard: ASTM A691 (Rolled & Welded)
Grade: 1-1/4 CR, 2-1 1/4 CR, 5 CR, 9 CR 91
End: Plain End, Beveled End, Thread End
Packing: Bundled with Hemp Rope/In Bulk
Application: In Petroleum, Aerospace, Chemical, Power, Boiler, Military Industry


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Alloy Steel Welded Pipe Description

What is an alloy steel welded pipe?

There are two types of alloy steel welded pipe, high alloy steel welded pipe and low alloy steel welded pipe. Low alloy steel welded pipe manufacturing up of pipes with an alloying percentage of less than 5%. A high alloy steel's alloying content would be anything from 5% to roughly 50%. Alloy steel welded pipe is part of the alloy steel pipe. Alloy Welded Steel Pipe is used in applications that require moderate corrosion resistance properties with good durability and at an economical cost. Simply put, alloy welded steel pipes are preferred in those areas where carbon steel pipes may fail.

Alloy Steel Welded Pipe Chemical Properties

Alloy Steel C Cr Mn Mo P S
0.05 – 0.15 1.00 – 1.50 0.30 – 0.60 0.44 – 0.65 0.025 max 0.025 max

ASTM A335 Alloy Steel Welded Pipe Mechanical Properties

Tensile Strength, MPa Yield Strength, MPa Elongation, %
415 min 205 min 30 min

Equivalent grades of SA335M Alloy Steel Welded Pipe

Name Temper Specification
Alloy 4130 N MILT6736, AMS6360, AMS6371
Alloy 4140 N,A, T AMS6381
Alloy 15CDV6 T1080, T980 AIR9160C, 1.7734.5, 1.7734.6

ASTM A335 Alloy Steel Welded Pipe Wall Thickness

Alloy Steel Pipe Types Out diameter Wall thickness
Alloy Steel Welded Pipe (in Stock + Custom Sizes) 5.0mm ~ 1219.2mm 1.0 ~ 15.0 mm
Alloy Steel Seamless Pipe (Custom Sizes) 5.0mm ~ 203.2mm As per requirement
NB Sizes (in stock) 1/8” ~ 8” SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160

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  • Size Chart of Alloy Steel Welded Pipe

    NPS OD Sch
    (inches) (inches) 10 20 STD 30 XS 40 60 80 100 XXS 120 140 160
    3/8 0.675 6606 9147 6606 9147
    1/2 0.84 6358 8575 6358 8575 17150 10908
    1 1.315 4956 6670 4956 6670 13340 9316
    1 1/4 1.66 4133 5638 4133 5638 11276 7380
    2 2.375 3177 4498 3177 4498 8995 7097
    2 1/2 2.875 3460 4704 3460 4704 9408 6391
    3 1/2 4 2769 3896 2769 3896
    4 4.5 2581 3670 2581 3670 7339 4769 5782
    6 6.625 2071 3195 2071 3195 6390 4157 5318
    8 8.625 1420 1829 1574 2841 1829 2307 2841 3375 4971 4085 4613 5147
    12 12.75 961 1441 1268 1922 1560 2160 2644 3244 3843 3843 4324 5042
    14 14 875 1092 1313 1313 1750 1533 2079 2625 3283 3829 4375 4921
    18 18 681 849 1021 1192 1361 1530 2042 2553 3147 3743 4252 4848
    20 20 613 919 919 1225 1225 1455 1989 2526 3138 3675 4288 4824
    24 24 510 766 766 1147 1021 1405 1978 2489 3126 3700 4210 4786
    30 30 510 817 613 1021 817
    34 34 450 721 540 901 992
    42 42 583 438 729 875

    Application of Alloy Steel Welded Pipe

    - Heat Exchangers
    - Condensers
    - Pulp and Paper Industry
    - Off-Shore Oil Drilling Companies
    - Power Generation
    - Petrochemicals
    - Gas Processing
    - Specialty Chemicals
    - Pharmaceuticals
    - Pharmaceutical Equipment
    - Chemical Equipment
    - Sea Water Equipment

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